Machine for manufacturing pipes, conduits, and the like.



WQR. HUME. MACHiNE FOR MANUFACTURING PIPES, CONDUITS, AND THE LIKE.

APPLICATION HLED IAN- 13, I914- Patented July 10, 1917.

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lzwezzfon' WALTER B EGINALD HUME, OF ADELAIDE, SOUTH AUSTRALIA, AUSTRALIA.

MACHINE ron MAnurAcrURInGrIrEs, connurrs, AND THE LIKE;

Specification of Letters Patent.

Patented July re, 1917.

Application filed January 13, 1914. Serial No. 811,871.

To all whom it may concern. I

Be it known that I, WALTER REGINALD HUME, a subject of the .King of Great Britain, residing at Flinders street, Adelaide, in the State of South Australia, Commonwealth of Australia, have new and useful Improvements in Machines for Manufacturing Pipes, Conduits, and the like, of which the following is a specification.

chine formanufacturing pipes, conduits,

and the like, the object of the samebeing to;

used for collars for'joining the'ends of ad jacent pipes. Means are also provided for 2 smoothing the interior of the pipes during the process of manufacture, and for the removal of slurry from theinterior afterv centrifugal action-has ceased.

In my for branch pipes placed at right angles or intermediate angles with the body of the pipe. ll will describe my invention by aid of the accompanying illustrated drawings wherein Figure 1 is a side elevationof a portion of the machine, I

Fig. 2 is a plan view of same, Fig. 3 is a sectional end of easing or run- W ner for pipes showing method of-supporting longitudinal division plates, r

Fig. 4 end view of easing showing adjustiable ring for supporting circumferential division plates. f Fig. 5'sectional side. view ing circumferential division tion, V

Fig. Gsectional end view of easing runner for pipes havingenlarged ends,

of easing showplates in posito I methodof of casing. I I Fig. 8 detail of cleat for attaching cir-- cumferential bands, 7 y

Fig. 9 is a channelsshaped scraper for joining or closingabutting edges I removing rough portions and invented certain from the interior surface'iafter the pipe has I I views of plug for My invention relates to an improved mai-nvention provision is also made.

I pulley 7 can be ren .Fig. 7 cross, section of easing showing surplus material from the interior of the'pipe,

Fig. 10 is a round surfaced trowel for. smoothing the surface of the interiornof the pipe,

-Fig. 11 is a scraper for removing slurry set, and

Figs. 12 and 13 illustrate end and side molding openings for right angle branch pipes.

Fig. 14 plug for molding branch pipes of 4.5 degrees. In eachof the illustrations similarletters of reference are used to denote similar or corresponding parts wherever they occur. I

In the drawings and referring to Fig. .1 a series of rolled joists 1 are used to form a seating forthe machine bed 2 upon which the main bearings 3 are mounted .for the support of the main which the belt wheel 5 is fastened, and is connected with any ,conveniently .placed motor.. I

At or near the. middle of the shaft the driving pulley 6 is loosely mounted, and at a little distance therefrom the smaller driving pulley 7 is likewise securely fastened, both pulleys being recessed for the reception of the coneclutch '8 wihich is operated backsite end of the bar being furnished with a nut 12 in which the screw threaded portion of the controlling speed shaft 13 operates, such shaft being rotated by means of conveniently placed handles 14' arranged vat each side of the machine as will be readily understood on reference to Fig. 2 of the drawings, and by means of which said mechanism either the lar e pulley 6 or the small I ered operative. I The double ended cone portion 8 which forms the. clutch rotates in unison with the driving shaft, being mounted upon a feather, and the loose wheels 6 and 7 abut against the fixed collars 15 when the cone clutch brings them into operation,

Parallel to the. subsidiary driving shaft 16 is mounted upon the bearings .17 at each side of the bed, This subsidiary shaft is furnished. with fixed pulleys 18.and 19 placed opposite to the pulleys 6. and 7 but difiering in diameter therefrom and connected thereto by belts 85. ward and forward by means of aclutch lever I 9 pivoted at 10to the cross bar 11, the oppo- (not shown in the drawings) whereby a change of speed is easily obtained.

The subsidiary driving shaft has frictional driving wheels fastened to its outer ends, and parallel to the shaft 16 a series of other shafts which I call driven shafts 18 each provided at its ends with frictional driven wheels 22 of similar size and character to the shaft 16 and the Wheels 20 are mounted, but belt wheels are not arranged in connection therewith.

The casings in which the pipes are molded are shown at 23, and consist of sheet metal fitted into a flanged wheel or runner" 24, which is also clearly section in Fig. 6 of the drawings. The casings arecircumferentially bound by the bands 25, the ends of such bands being beveled and turned over at 26, more clearly shown in Fig. 8 of the drawings so as to be gripped by the cleat 27 which is characterized by having a comparatively large opening 28 at one end which recedes with wedge shaped or beveled edges 29 to a comparatively small opening 30. The ends of the circumferential bands, which are permanently bent backward as illustrated, are easily inserted in the opening 28, and the cleat is then tapped with a hammer so as to cramp the ends of the band into the smaller space 30, thereby tightly pulling the casing together.

Instead of allowing the adjacent edges of the casing tooverlap they are bent upward at right angles as shown at 31 in Fig. 7, and are covered with a ridge plate 32 which said ridge plate is also incased by the circumferential bands previously described. This covering of the edges with a small ridge plate is an important feature in my invention.

After the casings have been circumferentially bound and inserted in the flanged wheels 24 the complete case thus made is longitudinally bound together by the rods 33 of which there are preferably two to each casing.

For convenience of construction and for the better handling of the casings I construct parallel with and immediately above the main bed of the machine a ramp or rail 34, a portion of which\marked 35 in the drawings is mounted upon vertically sliding standards 36, such standards having toothed edges to be operated upon by a toothed Wheel 38 fitted with handle gear 39 Whereby the moving portion of the ramp can be elevated or depressed as indicated in Fig. 1 of the drawings, suitable means (not shown on the drawings) being provided to hold the standard of the movable portion 35 when elevated to the height of the fixed portion 34. Guides are provided at 41 for steadying the vertical standards, and. the traverse of the moving portion of the bar shown in tion-in alinement with the portion 34 .to a.

position immediately above the various shafts 16 and 18.

At each end of the molding case I provide an adjustable ring 42 (Figs. 4 and 5) preferably formed in three sections pivotally joined together as illustrated, and having holes therein 43 for the reception of the ends of divisional bars 44 (Figs. 4 and 5). These bars are recessed at intervals as indicated at 45 for the reception of the rings 46, which may be regarded as dividing the mold or casing into sections, the bars also serving the purpose of supporting the reinforcement wires 47.

My machine also provides means for the insertion of longitudinal reinforcement wires by forming a series of slots or re-.

cesses in' a web on the outer face of the flanged wheel or runner 24. Such slots or recesses are illustrated at 52 in Fig. 3 of the drawings. Into these slots wires are inserted, and are carried from end to end of the casing, being fastened at each end and spaced according to the strength of the re: inforcement re uired.

By means 0 this device my machine is capable of accomplishing two important results other than the mere molding of the pipes. By the use of the bars 44, particularly when arranged as in Fig. 3, a pipe may be longitudinally divided into sections durlng the course of manufacture in such a manner as to render it easy for being subsequently splitalong the line of bar so as to form open flumes or troughs, and when used in combination with the rings 46, the pipe can be divided into short lengths.

For the purpose of forming an enlargement in one or both ends of the pipe the casing of my machine is fitted with a bellmouthed portion 48 (Fig. 6) in combination with the fianged'wheel or runner 24. The recess formed for joining purposes can be either substantially rectangular or it may be cone shaped, and can be applied either as an integral portion of the flanged wheel or runner 24, or may consist of an extension of the casing which-can be riveted on the main portion of the casing by small countersunk rivets 49.

For the purpose of making an opening in a length of pipe to enable a branch pipe to be inserted I form a plug of metal equal in thickness to the thickness of the pipe which is to be made and conforming to the curve of the casing. Such a plug suitable for forming holes for right angled branch pipes is illustrated in the sectional Figs. 12 and 13 as indicated by the reference numeral 49,

.the plug itself being held up to the casing aaeaaee round in plan with vertical edges as illustrated, but if required for branch pipes set at an angle other'than a. right angle the appearance of the plug will be somewhat different, as for instance a plug suitable for pipes to be inserted itbll-ll angleof 45 will lll side elevation contour appear substantiall as illustrated at 51 in Fig. 14.

Ai ter the pipes have been made and particularly in cases where, plug pieces for branch pipes are used it is desirable that the interior shouldbe scraped for the removal-of what is termed slurry as well as tar trated in Fig. 11 com for the, removal of excrescences of cement and waste material. This can best be achieved by the aid of a scraper as illusprising a shaft '53 which may be mounted in a convenient rest upon the machine or may be operated by h'nd, such shaft being provided with radiating spring scrapers 54 havin upturned ends shown at 55 in Fig. 11 of the drawings. The scraperso formed may be fitted with detachable wearing shoes 56.

In the various classesof pipe which are made the thickness of the intendedstructure may be increased or decreased by the insertion at each end of the mold or casin of an interchangeable thickening ring sue as that illustrated at 57 in Fig. 15 of the drawings. Rings of this description are made of various diameters and various thicknesses, and are characterized by being slotted at 58, the slot or out being preferably placed diagonally to the sides of the ringm the manner usually employed in connectlon with spring rings for pistons for steam engines. 7

11 using my Invention the casin s are set up substantially in the manner ilustrated 1n the drawings, their abutting ed es being covered by the ridge plate 32 and t eir ends incased in the flanged wheels or runners.

If the pipes are to be reinforced the reinorcementwlres or frame are inserted inside of the casing, and a rin such as 57 in Fig. 15 suitable to the inten ed thickness of the structure is inserted inside of the flanged wheels or runnersat each end, or the reinorcement maybe inserted in the manner rovided for with regard to Fig. 8 of the rawings.

he casing or casings are then placed upon the ramp 34 and traversed on to the movin portion 35 which has previously been elevated so as to receive them from the level of 34. By means of the bar 35 and the operative gear connected with it they. are lowered down to their bearin s upon the frictional driving wheels 20 an the driven wheels 22 where in combination with the various wheels they form a continuous frictional contact. Sow motion is then imparted to the machine from the main shaft 5 and bolt wheel which operates through the opening therein,

clutch 8 to impart slow motion from the small driving pulley 7 to the pulley 19. While the casings are slowly rotated by motion received from the frictional driving and driven wheels the cement or other con- Sbl'llCblOllltl ingredients of th thrown into the interior of the casing by means of an ordinary shovel, so that the material is evenly distributed under-conditions of comparatively slow s eed. The speed is gradual] increased until the molding and set-tin o the particles 1s cmnplcted. Meanwhile ali surplus material is removed by aid of the channel shaped'scra-per illustrated in Fig. 9, and subse uently the interior of the pipes are smoot ed or dressed while in rotation by the round shaped trowel indicated in Fig. 10.

After a final rotation has been given to the pipesxthe machine is gradually slowed down and all surplus water is permitted to drain oft-and the split ring 57 is removed. The casings are then bodily lifted to the level of the ramp 34 by means of the moving portion 35, andthey can be then rolled clear (it the working part of the machine so as to leave reception of a freshsupply of casings.

After the cement has been left suliiciently long to properly set, the casings are removed from the pipe by taking oh the flanged wheels or runners and tappin the cleat 27 clear of the turned ends 26 o the bands 25, so that upon the ends passing into the larger opening28-the cleat can e remove thus leaving the bands and the easing to easily be expanded or opened sufiiciently to enable the contents to be removed. In cases where plugs have been inserted to make provision for branch pipes, the bolts 50 must be taken out so that the plug can readily be released from the casin and the mold pipe, and a short length 0% pipe of smaller diameter but having an can subsequently be inserted adjacent to the main opening so as to afiord stren the end of the ranch pipe.

I claim: 1. In a machine for makin duits and series of Wheels mounted on parallel axes, the wheels on dne axis those on adjacent axes, moldin casings provided with runners frictional y engagmg the peripheries of the wheels on pairs of adjacent axes, and means for delivering power to the wheels on one of said axes, said molding casings being driven by means of" said wheels and adapted to transmit power between said wheels on parallel axes.

2. In a machine for maln'ng pipes, .con-' duits and the like, a fixed ramp or rail, a movable ramp ,or rail, means for raisin and lowering said movable ramp or raifi pi es, cone pipes ish and to form a seat for the like, the combination with.

being spaced from it free for the tatably mounted on said wheels and transmold supporting wheels arranged on par.- allel axes with spaced peripheries, and a mold journaled on the peripheries ofsaid wheels andforming a connecting element therebetween, said movable ramp or rail being suitably disposed to raise and lower said mold relatively to said wheels.

3. In a machine for making pipes," conduits and the'like, the combination of a fixed support, of mold supporting wheels jou'rnaled in said fixed support, a mold romitting power from some of said wheels to others of said wheels, and means movshafts, and a driving shaft having variable speed gear thereon for imparting rotary motion to the first of the series of such parallel shafts.

'5. In a machine for making pipes, conduits and the like, the combination of a fixed support, of mold supporting wheels journaled in said fixed support, a mold rotatably mounted on said wheels and transmitting power from some of said wheels to others of said wheels. and means movably mounted on said fixed support for raising and lowering said mold with respect to said wheels, said raising and lowering means "comprising a rail adapted to be moved into supporting engagement with said mold, a rack carried by said rail, and a pinion journaled in said fixed support and meshing with said ra'ck.

In testimony whereof I have aflixed my signature in presence of two witnesses.

WALTER REGINALD HUME.

Witnesses:

' WM. E. KNIGHT,

WM. A. CouR'rmND. 

